Driven member for friction clutches



1 v Jan. 1, 1946.

2 z m L A .m.

llllll M. KATCHER DRIVEN MEMBER FOR FRICTION CLUTCHES Original Filed021:. 4, 1939 ll E '25 2 /5 i IN V EN TOR.

aM/M

A TTORNE Y vided therefor.

. 1 and'B. i

:I-claim: I

said springs reacts against the opposite edge of openings l8 in flangel1. Continued rotation of disc l0, compresses springs l2 until'theydevelop enough resistance to rotate hub 6 along with disc II). In theform of my driven member shown in Figs. 1-4, auxiliary plate 25 isnotched out around housing l of disc I0, and is provided .withslotsll.

Friction? facing is riveted to disc. l0 by means of rivets 2|. Disc Illis countersunk to receive the heads of rivets 2|. 2|, holes 22 areprovided for the bucking up tool used in the driving of'rivets 2|.

by means of rivets 24. Because of its thinness,

' plate cannot be countersunk for the'heads of said disc. One legofspring3| is fiat while the other is substantially wavy shaped. Whilewavy shaped is my preferred form, it will be readily understood thatother shapes could be used as well. ;Friction facing 20 is provided,

with recesses 33 to receive the flat legs of springs 3|. 'Frictionfacing 23 is provided with deeper recesses 34 to accommodate thewavy'legs of springs 3|.

3|, spokes 28 would lie against disc 10. The

stiffness of facing 23 between where it is fastened ,to spokes '28 byrivets 24 is suflicient to. pull spokes 28 against their resiliency awayfrom 'disc It]; as facing 23 i held away therefrom by the wavy legs ofsprings 3|. This is my preferred form, but it is within the scope of myin,- ,ventionto make disc 10 of thin metal of sub-, stantially the samethickness as'that of plate 25,, in which case, instead of forcing spokes28 and facin 23 away from the original plane ,of disc Ill, that is,instead of having all the pushing out from said disc by springs 3|occuring in spokes 28 and facing 23-, said pushing out will be divided,between' the latter and disc ID with its facing 20. In Figs. 1-3, thespokes 28 are relatively less stiff than friction facing 23, that thespokes are caused to start bending at rivets 24, while friction facing23 is held substantially parallel to disc 10 by springs 3|. 5 n V In themodification shown in Fig. 5, auxiliary plate 625, instead of beingprovided with slots l l to accommodate rivets 9 as in Figs/1 and 2, isnotched out at 31 to clear theheads of rivets S.- Plate625 is welded todisc In between notches 31- instead of usingthe rivets 26 as seen inFigs.

A" driven member for friction clutches com prising a hub having aflange,an annular disc overlapping at its innerportion aside of said flange, anannular plate on the disc, said plate also at its inner part overlappingthe flange on the same side of the latter as the disc, means fixedlyattaching the plate to the disc at a location opposite the'flange, othermeans, located at said overlapping portion of the disc, fasteningtheflange to the disc with av limited relative ro-j Opposite rivetstation, means at said overlapping portion for cushioning said relativerotation, a friction facing on the disc at its peripheral portion on itsside away from the plate, and a second friction facing on the peripheralportion of the plate on its side away from the disc, said disc and plateat their peripheral portions being normally Friction facing 23 isattached to spokes 28 of auxiliary plate 25 Eachspring is held in placeon disc") by having its head pass through an op in The wavy legs. ofsprings 3| are nested in slots or cut-away areas 21 of plate 25,,andreact between disc l0 and'the inside of fac- 1 ing 23 at recesses,34. -Were it not for springs separated. a 2. A" driven member forfriction clutches comprising a hub having a flange, an annular discoverlapping at its inner portion a side of said flange, an annular plateon the disc, said plate also at its inner'portion overlapping the flangeon the same side of the latter, as the disc, means fixedly attaching theplate to the disc at a location opposite the-flange, a plurality ofspaced shouldered rivets extending through the flange 3. A driven memberfor friction clutches comprising a hub having a flange, an annular discoverlapping at its inner portion a side of said flange, an annular plateon the disc on its face away from said flange, said plate also. overlap-I ping the flange, means fixedly attaching the plate at-its innerportion to the disc at a location opposite the flange, aplurality ofspaced shouldered rivets extending through the flange and theoverlapping portion of the disc, each rivet being fixedly attached byone of its heads and its shoulder to said flange, its-shoulder beinslidably; mounted in the disc, to permit relative rotation of flangeanddisc, the plate being recessed to clear the rivets,-means at saidoverlapping portion for cushioning said relative rotation, a frictionfacing on the disc at its peripheral portion on its side away from theplate, and a secondfriction facing on the plate at its peripheralportion on its side away from the disc,

said disc and platebeing normally separated at said facings.

4. A driven member for friction prising a hub having'a flange, arelatively thick annular disc overlapping at its inner portiona side ofsaid flange, a relatively thin annular-plate on the disc on the face ofthe disc away from the flange, said plate also at its inner partoverlapping the flange on the same side of the latter as the disc, aplurality of circumferentiallyspaced rivets extending through the plateand disc opposite said flange, theheads of the rivets on the side of thedisc toward said flange being countersunk in the disc, means fasteningthe disc to the flange with a limited relative rotation, means forcushioning said relative rotation, and friction facings on oppositesides of the plate and 1 disc at their outer portions, said disc andplate at the friction facings being normally separated.

5. A- driven member for friction-clutches comprising a hub having aflange, an annular disc overlapping at its inner portion a side of theflange, an annular plate fixed to the'side of the disc away from saidflange at a location opposite the flange, said plate also at itsinner'part overlapping the fiange means located at the overlappingportion of thedisgzfastening the clutches com asoaase the openings inthe other. springs located in said openings, each spring extendingthrough an opening in the disc and in the flange for cushioning saidrelative motion, said plate being set back to clear the springs, andfrictioniacings on opposite sides of the plate and disc at their outerportions, said disc and plate at the friction facings being normallyseparated.

6. A driven member for friction clutches comprising a. hub having aflange, an annular disc overlapping at its inner portion a side of saidflange, an annular plate on the disc on the face of the disc away fromthe flange, said plate also at its inner part overlapping the flange onthe same side of the latter as the disc, aplurality of circumferentiallyspaced rivets extending through the plate and disc opposite said flange,spaces being provided between the disc and the flange for those heads'ofthe rivets which come on the flange side of the disc, means fasteningthe disc to the flange with a, limited relative rotation, means forcushioning said relative rotation, and

friction facings on opposite sides of the plate and disc at their outerportions, said disc and plate at the friction facings being normallyseparated.

MORRIS KATCHER.

